This topic is very interesting for me, so I would like to hear your thoughts.
Just like how it affects the economy and every other market. Global crisis may somehow even provide a way to make cryptocurrency flourish more but most likely if the people in a nation who play a large portion of asset in the crpytocurrency market suddenly becomes affected then it will surely affect the market also.
Whenever a financial crisi occurs people begin urgently searching for some reliable stores of value in order to protect their investment. It's quite likely that next time cryptocurrencies will become one of the most possible havens.